I may not be a parent of an older child but my last revision was when I was 9 and I hope that this may help. It started out with a headache that had increased sensitivity from day 1 to day 3 next a high fever that made me think I wet my bed but it was soaked due to the fever, crying due to the fact that the pain would not go away and when I went to the hospital I puked a lot before my ct scan. I hope that this will help but those are only the ones I experienced. They will vary from person to person. Good Luck